CVE-2024-25597

7.1 HIGH

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the WordPress Ultimate Reviews plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. The vulnerability affects all WordPress sites using Ultimate Reviews plugin versions up to 3.2.8, potentially compromising user sessions and site security.

💻 Affected Systems

Products:
  • WordPress Ultimate Reviews plugin
Versions: n/a through 3.2.8
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations using vulnerable plugin versions are affected regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, take over the WordPress site, deface content, redirect users to malicious sites, or install backdoors for persistent access.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies, perform actions on behalf of users, or redirect users to phishing pages.

🟢

If Mitigated

With proper input validation and output encoding, the malicious scripts would be neutralized before execution, preventing exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability is unauthenticated and publicly documented, making exploitation straightforward for attackers.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.2.9 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/ultimate-reviews/wordpress-ultimate-reviews-plugin-3-2-8-unauthenticated-cross-site-scripting-xss-vulnerability

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Ultimate Reviews plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 3.2.9+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable Ultimate Reviews Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate ultimate-reviews

Implement WAF Rules

all

Add web application firewall rules to block XSS payloads targeting review inputs

🧯 If You Can't Patch

  • Implement Content Security Policy (CSP) headers to restrict script execution
  • Enable WordPress security plugins with XSS protection features

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Ultimate Reviews → Version number. If version is 3.2.8 or earlier, you are vulnerable.

Check Version:

wp plugin get ultimate-reviews --field=version

Verify Fix Applied:

After updating, verify plugin version shows 3.2.9 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to review submission endpoints
  • JavaScript payloads in review content fields
  • Multiple failed review submissions with script tags

Network Indicators:

  • HTTP requests containing script tags in review parameters
  • Unusual outbound connections after review submissions

SIEM Query:

source="wordpress.log" AND ("ultimate-reviews" OR "review-submit") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")

🔗 References

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